| article html file updated | 31 August 2025 14:54 CEST | Update | https://www.mdpi.com/1422-0067/21/6/2121 |
| article html file updated | 20 July 2022 23:24 CEST | Update | - |
| article html file updated | 2 April 2020 03:22 CEST | Update | - |
| article html file updated | 23 March 2020 10:25 CET | Update | - |
| article pdf uploaded. | 23 March 2020 10:24 CET | Updated version of record | https://www.mdpi.com/1422-0067/21/6/2121/pdf |
| article xml uploaded. | 23 March 2020 10:24 CET | Update | https://www.mdpi.com/1422-0067/21/6/2121/xml |
| article xml file uploaded | 23 March 2020 10:24 CET | Update | - |
| article html file updated | 19 March 2020 14:32 CET | Original file | - |
| article supplementary file uploaded. | 19 March 2020 14:30 CET | - | https://www.mdpi.com/1422-0067/21/6/2121#supplementary |
| article pdf uploaded. | 19 March 2020 14:30 CET | Version of Record | https://www.mdpi.com/1422-0067/21/6/2121/pdf-vor |
| article xml file uploaded | 19 March 2020 14:30 CET | Original file | - |
